31371907

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 39690240

約数和(自身を除く): 8318333

約数列:

[1, 7, 19, 31, 49, 133, 217, 589, 931, 1087, 1519, 4123, 7609, 20653, 28861, 33697, 53263, 144571, 235879, 640243, 1011997, 1651153, 4481701, 31371907]

約数ペア:

[(1, 31371907), (7, 4481701), (19, 1651153), (31, 1011997), (49, 640243), (133, 235879), (217, 144571), (589, 53263), (931, 33697), (1087, 28861), (1519, 20653), (4123, 7609)]